Following up on r1660874, fix some relative paths.
Following up on r1660874, fix some relative paths.

* tools/dev/wc-ng/svn-wc-db-tester.c
  (includes): Fix reference to libsvn_wc internal headers to avoid gen-make
    warning. (Somehow the references did work!)


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1660876 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion